A larger vehicle is more of a hazard to others than a smaller vehicle, and the safety features you describe don't change that.
But, as you're in Australia, I'm not sure your definition of "large" matches the story's or mine. North America has a whole class of huge ass vehicles that are relatively rare elsewhere in the world. Are you driving an Escalade, F-150, or similar?
You're wasting your breath. This guy isn't going to give up his brodozer.